Nioxin Pro Clinicalu0027s Anti Hair Loss Serum is a leave-on scalp treatment, clinically proven to reduce hair loss* in only 8 weeks via improved hair anchorage while thickening hair from the 1st use. *By 20% on averageWhat is it: Anti-Hair Loss Serum is a leave-on thinning hair treatment. Designed for daily use, itu0027s clinically proven to increase hair anchorage with visible results in only 8 weeks* while thickening hair from the very first use.Why youu0027ll love it: This leave-on scalp treatment is the first time SANDALORE has been leveraged to stimulate hair follicles and improve hair anchorage.Featured ingredients: Formulated with innovative ingredients including SANDALORE, caffeine, lauric acid, and niacinamide. Together, they work to stimulate and nourish the hair follicles to prolong the growth cycle and improve hair resistance for fuller-looking hair.*Via improved hair anchorage; average results in 8 weeks, in a double-blind clinical study with 120 panelists.To use: Apply up to 15 pumps on dry or damp hair daily.Massage evenly across the scalp and do not rinse.Use daily for visibly thicker, stronger hair.